Mobile network provider 3 is offering an exclusive iPhone deal through Recombu.com, which comes with a £169 cashback promise.

The 3 One plan, which is available for one week only, has 2,000 minutes, 5,000 texts and 'all you can eat' data. This is available with an iPhone 4 16GB handset for £19 on a two-year contract costing £40 a month, or with a handset for £69 and a £35-a-month contract.

Those who prefer a 32GB handset will pay £109 for the handset and £40 a month over two years, or £159 on a £35-a-month contract.

Unlike previous mobile cashback offers, which have involved a complicated system of vouchers and the reclaimation of money on a monthly basis, the £169 will be paid all in one go.

Tom Hopkins, head of sales and partnerships at Recombu, said: "The cashback is being provided by Recombu and will be paid via PayPal after we have had confirmation from 3 that the customer has signed up for this deal.

"Once the customer has given us their details and purchased the deal on the 3 mobile site, the cashback will be paid as soon as we have verified a successful transaction."

Ernest Doku, an expert on mobile phones for comparison website uSwitch, said: "3's One plan is impressive in terms of offering a healthy combination of minutes, texts and all-you-can-eat data – an ideal combination for the smartphone user. However, there are also very strong deals available through other major networks, likely due to the impending iPhone 5."

Vodafone in partnership with uSwitch is offering a free iPhone 4, 900 minutes, unlimited texts and 750MB of data for £41 a month – as well as a promotional code (3MHPLR) giving three months' line rental at half price.

Doku said: "Consumers have been attracted by the network's strength of coverage – Vodafone was rated as the number one iPhone network by YouGov, as well as the fastest 3G network in the UK according to our own uSwitch StreetStats data."

Although 3's coverage has been criticised by users in the past, Doku said the network "is good when it comes to 3G coverage, their 2G reception in the UK has vastly improved also".